I am not aware, however, of anyone working on a BM25 implementation.
We are a volunteer project, though, so we are always open to
contributions!

-Grant

On Oct 17, 2006, at 5:50 AM, J.Zhu wrote:

Hi, All,

I am an enthusiastic user of Lucene and it is very helpful to my
projects at hand. As probabilistic models such as BM25 are very
popular among research communities now, do you have any plan to
incorporate some of them in future Lucene release? I believe that will